In geometry, area is the 2-dimensional space or region occupied by a closed figure, while perimeter is the distance around a closed figure i.e. the length of the boundary. For example, the area can be used to calculate the size of the carpet to cover the whole floor of a room. Perimeter can be used to calculate the length of fence required to surround a yard or garden. Two shapes may have the same perimeter, but different areas or may have the same area, but different perimeters.
Contents: Area vs Perimeter
edit Measurement and Units
Area represents a two-dimensional region; so the unit for area is "square units". e.g. 24 inches squared or 20 centimeters squared. This is written as 20 cm2.
We use linear units when we measure perimeter. Linear units measure one dimension, length.
edit Formulas to calculate area and perimeter
edit Irregular Objects
An irregular shape has sides of different length. Calculating area on these shapes involves breaking the shape down into common shapes like squares, rectangles, triangles and circles. This is because these shapes all have set formulas for calculating their area. Being able to see the shapes within shapes is the key to calculating the area of irregular shapes. After finding the area of each shape add them to get the total area. In the case of perimeter of irregular object just measure the length of each side and add them up.
"Area vs Perimeter." Diffen.com. Diffen LLC, n.d. Web. 19 Sep 2014. < http://www.diffen.com/difference/Area_vs_Perimeter >